Entoderm
n. 内胚层\\n[医] 内胚层
🗣️ 情景例句
What broke up their friendshop?
是什么破坏了他们的友情呢？
What's lost is lost.
流水落花春去也。
Collecting, by occupying spare time so constructively, makes a person contented, with no time for boredom.
收藏活动通过富有建设性地利用业余时间使人感到心满意足，不再有无聊之日。